Accession Number:

AD0404100

Title:

DISPERSON-STRENGTHENED VANADIUM ALLOYS

Descriptive Note:

Bimonthly progress rept. no. 2, 14 Feb 13 Apr 1963

Corporate Author:

IIT RESEARCH INST CHICAGO IL

Report Date:

1963-05-01

Pagination or Media Count:

18.0

Abstract:

Arc-melting and powder metallurgy techniques are used to incorporate fine, refractory dispersants in vanadium-columbium base alloys in order to improve their long-time, elevated-temperature strength properties. Solution annealing and aging studies of arc-melted alloys containing hafnium or zirconium in combination with carbon indicate that the hafnium carbide phase is more stable. The hydride process was used to obtain powders of V-60wo Cb-1wo Ti, to which fine oxide or carbide powders were added. After blending, cold- compacting, sintering at 2800 F, and annealing at 2000 and 2400 F, specimens containing alumina and thoria exhibited a high degree of reactivity with the alloy base. Improved stability was noted in the alloys containing ceria, lanthana, yttria, hafnium carbide, and zirconium carbide.

Subject Categories:

  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE